What kind of trans goes with a 307 Oldsmobile?

The 307 Oldsmobile engine is typically paired with a GM TH350 or TH400 automatic transmission. These transmissions are well-suited for the 307's performance characteristics and are commonly used in various GM vehicles from that era. For manual options, a Muncie or Saginaw transmission could also be considered, depending on the specific setup and modifications. Always ensure compatibility with the drivetrain and vehicle application when selecting a transmission.